For those of you who are questioning the eye movement/lying thing---- HERE is a good site to explain it. THIS is another. When they say LEFT they mean your left - so when a person looks to THEIR right (your left) - it is MADE UP, a lie:
How this information is used to detect lies:
Example: Let's say your child ask's you for a cookie, and you ask them "well, what did your mother say?" As they reply "Mom said... yes." they look to the left (your left, their right). This would indicate a made up answer as their eyes are showing a "constructed image or sound. Looking to the right (their left) would indicPublish Postated a "remembered" voice or image, and thus would be telling the truth.